561364296870 has 192 divisors, whose sum is σ = 1495592792064. Its totient is φ = 134727390720.

The previous prime is 561364296853. The next prime is 561364296887. The reversal of 561364296870 is 78692463165.

561364296870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (561364296853) and next prime (561364296887).

It is a self number, because there is not a number n which added to its sum of digits gives 561364296870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 64572244 + ... + 64580936.

It is an arithmetic number, because the mean of its divisors is an integer number (7789545792).

It is a 1-persistent number, because it is pandigital, but 2⋅561364296870 = 1122728593740 is not.

Almost surely, 2^561364296870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561364296870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747796396032).

561364296870 is an abundant number, since it is smaller than the sum of its proper divisors (934228495194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561364296870 is a wasteful number, since it uses less digits than its factorization.

561364296870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9047 (or 9034 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 561364296870 in words is "five hundred sixty-one billion, three hundred sixty-four million, two hundred ninety-six thousand, eight hundred seventy".